别忘了将编译器设置为clang ++:

Don't forget to set the compiler to clang++:

set(CMAKE_CXX_COMPILER "clang++")

此外，清除cmake生成的文件(删除文件夹CMakeFiles和CMakeCache.txt).

Also, purge the cmake generated files (delete the folder CMakeFiles and CMakeCache.txt).

根据您的系统，它可能也有助于设置

Depending on your system, it might also help to set

set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -lc++abi")